Electric seam-calking tool.



N0. 634,3l5. Patented Oct. 3, I899. E. T. THOMAS.

ELECTRIC SEAII OALKING TOOL.

(No Model.)

:ru: Noam: PEYEPS 00.. PHOTO-H1540" wAsMmomN. o. c.

UNITE STATES PATENT Prion.

EDDY T. THOMAS, OF NEWV YORK, N. Y ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE ELECTRIC STONE CLEANING AND RENOVATING COMPANY, OF JERSEY CITY, NEW JERSEY,

ELECTRIC SEAM-CALKING TOOL.

SPECIFICATION forming part of Letters Patent No. 634,315, dated October 3, 1899.

Application filed December 4, 1895. Serial No. 571,017. (No model.)

To all whom it may concern. which the negative and positive wires from Be it known that I, EDDY T. THOMAS, a citithe dynamo or battery are secured to the zen of the United States, and a resident of the motor conductors or poles A 4 and A city, county, and State of New York, have A Fig. 1, is a section secured to the motor 5 invented a new and useful Improvement in and drilled through from end to end and sup- Electrio Seam-Calking Tools, of which the ports the tool-holder E, spring C, and screw following is a'specification. D. The hole is tapped at its rear end to re- The object of this invention is to operate ceive the thread D- of the screw D and has seain-calking tools for calking ships by eleca narrow longitudinal slot A Figs. 1 and 2, 6o

10 tricity. cut through its upper wall, in which the lug The invention consists in operating by an E of the tool-holder E slides back and forth electric motor a spring and cam actuated when the machine is in operation. tool, a cam for compressing the spring and E, Fig. 1, is a tool-holder having a recess forcing the tool back, a spring for operating in its outer end in which the shank F of the 15 the tool forward against the object to be acted tool F fits. It is provided with a log E, upon, adjustable means to give more or less which prevents the holder from turning to tension to the spring, a cam having one or the right or left. The lug-E maybe dispensed more elevations to operate the tool one or with by using any of the well-known equivamore times at each revolution of the motorlents to prevent the tool-holder from turn- 2o arbor, horizontal trolley-wires and trolleying and by allowing the free end of the toolwheels for conveying the current to and from holder to run against the cam B. the motor, a reel for winding the motor-wires, B, Fig. 1, represents a cam-flange secured means to prevent the reel from turning, and to the motor-arbor A and has on its inner the current-wires for conveying the electricity face an incline plane B gradually rising from 7 5 25 and supporting the motor. its lowest face-surface B until it reaches the Figure 1 is a side view of the motor, tool, drop B. At each revolution of this cam the and operating parts. Fig. 2 is a top view of incline plane B forces the lug E and the tool- Fig. 1. Fig. 3 is a top view of Fig. 1, having holder E back, compressing the spring C unreel attachment. Fig. 4 shows the construe? til the drop B is reached, at which point the 30 tion of reel, the position of the negative and spring forces the tool -holder forward and positive wires, and motor-conductors. Fig. 5 causes the calking-tool F to operate against shows the conductors and reel-supports, and the edge of the overlapping steel plate to Fig. 6 shows the motor supported by the conforce the edge against the under plate. In ducting-wires from the trolley-axle. order to prevent the lug E in its forward 3 5 A in the several figures represents an elecmovement from striking the face of the cam tric motor provided with an arbor A jouras it springs off the elevation at B, the cam naled at each end of the motor-shell on which E is set so that the lug E will strike the end the cam B is secured, as shown in Figs. 1, 2, wall A of the slot A instead of the cam-surand 3. These motors are of ordinary conface at B thereby preventing any injury to 0 4o struction and are to be made very light, the motor-coils. When a heavy'blow is necweighing from fifteen to twenty pounds,which essary to operate the tool F, the spring' C is will enable the operator to readily control the compressed by turning the screw in, and vice instrument. versa for a light blow. Should it be found A and A are handles which enable the opthat the tool F does not operate fast enough,

5 orator to easily guide the tool along the object two or more elevations B and B can be used to be treated. on one cam, as shown inFig. 3.

A", Figs. 1, 2, and 3, is a switch operated by A A Figs. 3 and 6, are stanchions secured the button A and is located on the motor to to the motor A and support the windingmake it convenient for the operator to start drum arbor H. These stanchions are bored Ice 50 and stop the instrument. out on their inner sides to receive the con- A and A, Fig. 2, are thumb-screws by ducting-disks H and H Figs. t and 5, which revolve with the drum II and are insulated from the st anchions by the vulcanized-rubber eups II. The inner sides of these stanchions A are provided with grooves J", as shown in Fig. 5, to receive the conductors or poles A and A, Fig. 2, which press against the tillder side of the disks II and II' to complete the circuit.

H, Figs. 3, 4, and (3, is a drum on which the combined conducting and support wires J are wound. It is provided with end flanges II and II and is supported by the arbor II. The covered or insulated negative and positive wires J and J are for convenience twisted together, forming one rope or cable J, as shown in Figs. I and 6. This cable J is separated as it reaches the drum. The negative part J is turned to the left and the positive to the right. Both are securely embedded in the drum II and their free ends firmly pressed against the conducting-disks II and H as shown in Fig. 4:.

K and K, Fig. 6, are copper trolley-wheels loosely journaled on the axle K and held in place by nuts 1U. These copper wheels are provided with grooves K around their peripheries, in which the trolley-wires I I rest. The conducting and supporting cable J, Fig. (3, is separated at its upper end. The negative part J is turned to the left, while the positive part J is turned to the right, and both ends are firmly secured to the axle K by aid of the friction-clamps J and J. That the electric current may readily pass from the trolley-wheels to the conductors J and J the clamps J and J are set in contact with the sides of the trolley-wheels, as shown in Fig. (5.

I1 Fig. ti, is a drum-crank which enables the operator to raise or lower the motor to any desired point, where it is held in place by the friction-screw II as its inner end presses against the flange II and acts as a brake.

On the outer side of the cam 13a thin metal plate L is secured, as shown in Fig. 3, which acts as a blower to clear the dirt and scales from the work being done.

The operation is as follows: The trolleywires I and I are tightlysuspended nearto and parallel one with the other along the object to be treated and properly arranged to complete the circuit to and from the electric generator. The trolley-truck is then mounted on the wires I and I and the negative and positive wires J and J secured to the clamps A and A. The motor is then raised or lowered by turning the crank 11 until it is opposite the objeet to be treated. The motor is then started by closing the circuit with the button A of the switch A. The tool F is then guided along the object to be treated, raised or lowered by turning the crank H and moved to the right or left by drawing the trolley-truck along the wires I and I. In case of temporary work and on other occasions the trolleywires I and I and trolley-truck may be dis pensed with and also the reel by securing portable negative and positive wires direct to the motor, as in Fig. 2, from the dynamo or other suitable wires.

By the aid of this device it can be readily seen that calking the seams of ships, boilers, tanks, and like articles can be done with great despatch.

Having thus fully described my invention, what- I claim, and desire to secure by Letters Patent, is-

In an electric calking-machine therotatable arbor A cam I) fixed to the arbor A, and having a fan L, to blow away the dirt and scales, in combination with the tool-carrier E slidably supported and having lug E, in close proximity to cam B, and the spring 0, to force the carrier forward as and for the purpose described.

In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this Ith day of December, 1895.

EDD Y T. Tl IOMAS.

\Vitnesscs;

It. J. CAMPBELL, ALnxn. Mnmmpo. 

